Improvement in floating tide-docks



N- PETERS. PHOTO-LITHOGRAPHER. WASHINGTON. D f24 aantasten gaat nimm `WILLIAM Brennan, or J'nnsEYj'oIrY, NEW JERSEY, AsseNoR To HIM- fs'nLrANn n. n. Milles, or sans PLAGE.

y ii Lener; Patent 'No'. A105325, amd July 26, '1870.l

` 'iiurovnmenr V:1t rLoATrNG :rms-bocas.

l The Scheduleeferre to ln thele'Letters Patent and makngpart o! the nenne To all @hom-#meg conce-rn Be it,.known that'I, WILLAM Brennan, of J erll` sey Dity, eounty of H udsomand State of New Jersey, have Invented a new and useful Improvementin Floating` Tide-Doek; and l. do hereby declare' that the following .is a full, elear, `andeiract description i thereof', which will enable others skilled in the" art to makeandiuse the same,refere'nee being had'to the accompanying drawing forming part of this specifica'.- tionf- This inventionrelates'to'anewand useful improvement in docks for repairing and building canal-boats, and other marine vessels, more especially designed for i lIt consists' in a water-tightoat with `a gate-way for the entrance ofthe boat or vessel, which gate- Y.way is tightly and securelyclosed when the -bo'at is plaeedn the dock or oat, andin water-gates (one or more) for the discharge o f the watenas will be hereinafter more` fully described.' i i In the accompanying drawing- Figure lis a longitudinal vertical section'V on the line a: x-of fig. V2. i

` Figure -2 is a top or planview. y

h 4Similar letters of reference indicate corresponding y paris.

`A is thedock,l .whichV is a water-tight vessel of length and width suitable to receive canal or other boats or vessels, with o ne or both of its ends hinged so as to be turned down for the admission of the boat or vessel. When the canal-boat has beenciioated into the dock the hinged end isfastened up and secured by hooks, or otherwise, as see'n in iig. 2.

h o B represent-s this hinged. end.

G are the bottom timbers of the dock upon which the boat or vessel is supported.

The outline of aboatis seen in. dotted linesresting on the bottom of the dock.`

' D'represents the gates through which ,the water is allowed to escape after the tid-e has raised thevdock and boat. These gates are simple slides eonlined in' grooves worked against the ends for endof the doek` water-tight.

. Y .lhis dock operates entirely with 'the tide... There is,

consequently,'no pumping or expense for steam or other power'- for that purpose. Whenftbetide is down the dock rests upon the bottom. When the tidenisesthe end ot the dook is dropped down and a. boat= or vessel is floated into'it. Theihinged en d B is then raised and fastened up, as seen. fWhen the tide again falls the gates are opened, and the water runs out through the gates, which are again lclosed. It

will be seen that the dock, with the boat, oats at water, this track allows operations .to be commenced on the boat as soon as she is docked, and before the tide falls tolet out the water.`

' These docks-are portable, and maybe used in any;

location along shore where the tide'rises and falls` sui'm vliciently to ioat and empty them.

Having thus described my invention, i I claim as new and desire' to secure by Letters Patent- The water-tight -floating dock A, for canal-boats,

Ahavingrhinged end B, and water-escape gates D, each Vconstructed and relatively arranged as described.

The-above speclication of my invention signedby me this 23d day of March, 187Q.

` WILLIAM RICKARD.

Witnesses:,

\ Gno. W. Munn,

ALEX. F.V Ronnnrs. 

